Results 191 to 200 of about 95,729 (224)

ON SOME CLASSES OF MIXED GENERALIZED QUASI-EINSTEIN MANIFOLDS

jnanabha, 2022
In this paper we study mixed generalized quasi-Einstein manifold satisfying some curvature conditions like K.Ric = 0, C.Ric = 0, N.Ric = 0, where K, Ric, C and N denote the Reimannian curvature tensor, Ricci tensor, conformal curvature tensor and ...
Mohd Vasiulla, Q. Khan, Mohabbat Ali
semanticscholar   +1 more source

On a family of Einstein like Walker metrics

A four dimensional pseudo-Riemannian manifold of signature (2, 2) is called a Walker manifold if it admits a parallel degenerate plane field. In this paper, we study the curvature properties of such a class of four dimensional Walker manifolds.
Issa Allassane Kaboye, M. Ciss, A. Diallo   +2 more
semanticscholar   +1 more source

Ricci-Like Solitons with Vertical Potential on Sasaki-Like Almost Contact B-Metric Manifolds

Results in Mathematics, 2020
Ricci-like solitons on Sasaki-like almost contact B-metric manifolds are the object of study. Cases, where the potential of the Ricci-like soliton is the Reeb vector field or pointwise collinear to it, are considered.
M. Manev
semanticscholar   +1 more source

Characterizations of a Lorentzian manifold with a semi-symmetric metric connection

Publicationes mathematicae (Debrecen)
In this article, we characterize a Lorentzian manifold $\mathcal{M}$ with a semi-symmetric metric connection. At first, we consider a semi-symmetric metric connection whose curvature tensor vanishes and establish that if the associated vector field is a ...
U.c. De, K. De, S. Guler
semanticscholar   +1 more source

The extended quasi-Einstein manifolds

Filomat
As a generalization of Einstein manifolds, the nearly quasi-Einstein manifolds and pseudo quasi-Einstein manifolds are both interesting and useful in studying the general relativity.
Zhiming Huang, Fuhong Su, Weijun Lu
semanticscholar   +1 more source

Simulating Einstein's Equations from Entropy of a De Sitter-Like Quantum Statistical Manifold

Social Science Research Network, 2022
Ahmed Farag Ali, Hassan Alsha
semanticscholar   +1 more source

Cosmology Based on Finsler and Finsler-like Metric Structure of Gravitational Field

In this article, we review some aspects of gravitational field and cosmology based on Finsler and Finsler-like generalized metric structures. The geometrical framework of these spaces allows further investigation of locally-anisotropic phenomena related ...
P. Stavrinos, A. Triantafyllopoulos
semanticscholar   +1 more source

Higher-Dimensional Anisotropic Modified Holographic Ricci Dark Energy Cosmological Model in Lyra Manifold

Astrophysics, 2021
K. Das, J. Bharali
semanticscholar   +2 more sources

Einstein-like metrics on three-dimensional Riemannian homogeneous manifolds

1992
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
ABBENA, Elsa, GARBIERO, Sergio, L. Vanhecke   +2 more
openaire   +2 more sources

$$\mathcal {D}-$$ D - homothetic deformation on para-Sasaki-like Riemannian manifolds

Journal of Geometry, 2023
S. Bulut, Pınar İnselöz
semanticscholar   +1 more source